预加压应力对Ni-Mn-Ga-RE(RE=Tb,Sm)合金磁感生应变的影响

材料工程, 2005, (2): 34-40. doi: 10.3969/j.issn.1001-4381.2005.02.009

预加压应力对Ni-Mn-Ga-RE(RE=Tb,Sm)合金磁感生应变的影响

郭世海 ^1, , 张羊换 ^2, , 赵增祺 ^3, , 李健靓 ^4, , 王新林 ^5,

1.钢铁研究总院功能材料所,北京,100081

2.钢铁研究总院功能材料所,北京,100081

3.包头稀土研究院,包头,014010

4.钢铁研究总院功能材料所,北京,100081

5.钢铁研究总院功能材料所,北京,100081

基金项目: 国家高技术研究发展计划(863计划)(2001AA327022)

关键词： Ni-Mn-Ga合金 , 预加压应力 , 稀土 , 磁致应变 , 形状记忆合金

Effect of Pre-compressive Stress on Magnetic-field-induced Strain in Ni-Mn-Ga-RE(RE=Tb,Sm) Alloys

研究了稀土元素Tb和Sm对Ni-Mn-Ga磁性形状记忆合金的马氏体相变及磁致应变的影响,并着重研究了预加压应力对合金磁致应变的影响作用.结果发现,微量的稀土元素Tb和Sm的掺入,降低了合金的马氏体相变温度和居里温度.在施加一定的预加压应力后,其磁致应变值有大幅提高,并且大预加压应力在较低磁场下不能使合金产生最大磁致应变,但能够使合金在高磁场作用下获得大磁致应变,所以施加适当的预加压应力是提高合金磁致应变的有效方法.

参考文献

[1]	Enokizono M.;Todaka T.;Szpryngacz M.;Kanada T.;Watanabe Y. .Magnetic and thermal characteristics of a magnetic shape memory alloy (Fe-Cr-Ni-Mn-Si-Co)[J].Journal of Applied Physics,2002(10 Pt.2):7448-7450.
[2]	Vassiliev A. .Magnetically driven shape memory alloys[J].Journal of Magnetism and Magnetic Materials,2002(1):66-67.
[3]	EZERAY;SOZINOV A;KIMMEL G et al.MagneticshapememoryMSMeffectintexturedpolycrystallineNi2MnGa[J].SPIE,1999,3675:244-251.
[4]	O'Handley RC. .Model for strain and magnetization in magnetic shape-memory alloys[J].Journal of Applied Physics,1998(6):3263-3270.
[5]	ULLAKKOK;HUANG J K;KANTNER C et al.Largemagnetic-field-inducedstrainsinNi2MnGasinglecrystals[J].Applied Physics Letters,1996,69(13):1966-1968.
[6]	R. Tickle;R.D. James .Magnetic and magnetomechanical properties of Ni2MnGa[J].Journal of Magnetism and Magnetic Materials,1999(3):627-638.
[7]	MurraySJ;HAYASHI R;MARIONI M et al.MagneticandmechanicalpropertiesofFeNiCoTiandNiMnGamagneticshapememoryalloys[J].SPIE-The International Society for Optical Engineering,1999,3675:204-211.
[8]	W. H. Wang;G. H. Wu;J. L. Chen .Stress-free two-way thermoelastic shape memory and field-enhanced strain in Ni_(52)Mn_(24)Ga_(24) single crystals[J].Applied physics letters,2000(20):3245-3247.
[9]	CHERNENKOVA .Compositionalinstabilityofβ-phaseinNi-Mn-Gaalloys[J].Scripta Materialia,1999,40(05):523-527.
[10]	GEJIMAF;SUTOU Y;KAINUMA R et al.MagnetictransformationofNi2AlMnHeusler-Typeshapememoryalloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1999,30(10):2721-2723.
[11]	Restorff JB.;Wun-Fogle M.;Clark AE.;Lograsso TA.;Ross AR.;Schlagel DL. .Magnetostriction of ternary Fe-Ga-X alloys (X=Ni,Mo,Sn,Al)[J].Journal of Applied Physics,2002(10 Pt.3):8225-8227.
[12]	EndoK;OIWA K;SHINOGI A .StructuralphasetransitionsandmagnetisminNi2Mn1-xVxGaandCo1-yNiy2NbSn[J].Journal of Magnetism and Magnetic Materials,1992,104-107:2013-2014.
[13]	郭世海,赵增祺,王新林,张羊换.Ni48Mn33Ga18Tb1合金的马氏体相变和磁性形状记忆效应[J].稀土,2002(02):26-29,33.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

预加压应力对Ni-Mn-Ga-RE(RE=Tb,Sm)合金磁感生应变的影响

Effect of Pre-compressive Stress on Magnetic-field-induced Strain in Ni-Mn-Ga-RE(RE=Tb,Sm) Alloys

参考文献